TITLE:
Growth, Structural, Spectral and Optical Studies on Pure and L-Alanine Mixed Bisthiourea Cadmium Bromide (LABTCB) Crystals
AUTHORS:
M. Senthilkumar, C. Ramachandraraja
KEYWORDS:
Crystal growth; Slow evaporation method; X-ray diffraction; FT-IR, UV-Vis-NIR;Second harmonic generation.
JOURNAL NAME:
Journal of Minerals and Materials Characterization and Engineering,
Vol.11 No.6,
June
15,
2012
ABSTRACT: Pure bisthiourea cadmium bromide (BTCB) and 1 mole % L-alanine mixed bisthiourea
cadmium bromide (LABTCB) single crystals have been grown by slow evaporation method.
The grown crystals have been characterized by single crystal XRD analysis, powder XRD
analysis, FTIR analysis, UV-Vis-NIR analysis and SHG studies. XRD analysis confirms the
crystalline nature of the materials. The addition of L-alanine changes the crystal structure
from orthorhombic to tetragonal. The presence of various functional groups present in the
pure BTCB and LABTCB crystals have been confirmed by FTIR analysis. The UV-Vis-NIR
spectrum shows the transmission characteristics of the crystals. The SHG study depicts the
nonlinear optical efficiency of the crystals.